Recovering corrupted n64 save file

I'm sure this information exists somewhere out there but I haven't had luck with my searches so far:

So I've been recently playing through Ocarina of Time on Retropie using the mupen64plus-gles2rice-highres emulator. Right after dying in one dungeon the system froze while saving and now when I run the ROM it won't recognize any save file (the starting screen just has 3 blank slots, no save file to select).

I can see that the .sra file still exists and I have saved it locally to my PC. Is there any way to "recover" this file or get it working again or do I now either have to start over / find a save file online close to where I was?